From d36b2871c042a6f9015cb93f24d928035cfa311d Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Wed, 27 May 2020 00:51:12 +0200
Subject: [PATCH] [perf] run destination propagation by default

---
 src/librustc_mir/transform/dest_prop.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc_mir/transform/dest_prop.rs b/src/librustc_mir/transform/dest_prop.rs
index 3fe20fd676d61..ec47c72c06c30 100644
--- a/src/librustc_mir/transform/dest_prop.rs
+++ b/src/librustc_mir/transform/dest_prop.rs
@@ -128,7 +128,7 @@ impl<'tcx> MirPass<'tcx> for DestinationPropagation {
     fn run_pass(&self, tcx: TyCtxt<'tcx>, source: MirSource<'tcx>, body: &mut Body<'tcx>) {
         // Only run at mir-opt-level=2 or higher for now (we don't fix up debuginfo and remove
         // storage statements at the moment).
-        if tcx.sess.opts.debugging_opts.mir_opt_level <= 1 {
+        if tcx.sess.opts.debugging_opts.mir_opt_level == 0 {
             return;
         }